Yang pintar Tolong dijawab ya

Yang pintar Tolong dijawab ya

Jawaban:

$a = {64}^{ frac{1}{3} } = sqrt[3]{64} = 4 \ b = {81}^{ - frac{1}{4} } = frac{1}{ {81}^{ frac{1}{4} } } = frac{1}{ sqrt[4]{81} } = frac{1}{3}$

maka

(i)2a÷b = 24, benar

$2(4) div frac{1}{3} = 8 times frac{3}{1} = 24$

(ii)a×b = 12, salah

$4 times frac{1}{3} = frac{4}{3}$

(iii)a-b = 1,salah

$4 - frac{1}{3} = frac{12}{3} - frac{1}{3} = frac{11}{3} =3 frac{2}{3}$

(iv)a+b = 5, salah

$4 + frac{1}{3} = frac{12}{3} + frac{1}{3} = frac{13}{3} = 4 frac{1}{3}$

maaf kalau salah

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